Signaling device.



P. J. POINAN.

SIGNALING DEVICE.

APPLICATION FILED MAR. G, 1909.

@@@ ??1 w Patented Apr. 25, 191

Suva whoa n Wm, flaw *l i fli'lt. ram a o of Letters Patent Patented Apr, 25, Mill. Application filed March '6, 1909. Serial '1'? o. :83.,773.

To all whom it may. concern: brass nut 10 from the end of the zinc cylin- Be it known that l, FRANCIS J. Poinlm, der 4ca citizen of; the United States, residing at 12 is a binding post in the zinc cylinder 4,

Rochester, in the county of Monroe and and 13 is a similar binding post in the brass State of New York, have invented certain nut 10, to which posts are connected wires new and useful Improvements in $ignaling l4: and 15, connected to a battery 16 and in 0 Devices; and I do hereby declare the followthe same circuit as a signal 17, which may ing to be a full, clear, and exact description be either an electric lamp or a hell or any of the invention, such as will enable others form of indicator.

.0 skilled in the art to which itappertains to 181cc resents a clamp having a flat top 19 make and use the same. screws or riveted to the under part of the 55 invention relates to improvements in top of the casing 3. The rod (5 provided signaling devices and is primarily intended with a hand wheel 20 and ascrew-threadcd to be applied to automobiles, or other veportion 21, whichworks in a screw-thrcadis hicles, to indicate to the chaulieur or driver ed portion of the brass nut 10.

that one of the lamps has been extinguished. l0 represents a lock nut to prevent the The object of my invention isto produce parts from becoming loosened by jarring. a simple and inexpensive device which may 1 The operation is as follows: The hand he applied to a vehicle lamp and which will wheel 20 is so adjusted as to bring the plati- '29 give a visible or audible indication to the num point 7 in contact with the head 5 when river or chauffeur when the lamp goes out the cylinder 4E is not heated. This is done 7 or becomes very low. before the lamp is lighted and the device 17 IVitli this object in View, my invention I gives either an audible or a visible signal. consists in the construction and coinbina- When the lamp 2 is lighted, it heats the 25 tions of parts as hereinafter described and zinc cyilinder, causing it to expand faster claimed. I than the iron rod 6 does, the latter being In the accompanying drawing-Figure 1 contained within the asbestos tube 6. This is a view showing a vehicle lamp with my breaks the connection between the platinum invention applied thereto. Fig. 2 is a cross point 7' and the brass head 5, so that the cir- 30-section of the device for giving thesignal, cuit connected to the battery 16, and in and Fig. 3 is an end view of the supporting which circuit the signaling device 1? is loclamp. 3 oated, is broken, whereupon the signal ceases 1 represents a lamp casing in which is sc-i to give an indication, and this condition concured an oil lamp- 2, although obviously any llllues, as o g s he lamp is burning 35 preferred form of lamp could be used. The brightly. Should the lamp 2 go out or beupper part, of the casing is provided'vvitli 0013716 very low, the zinc cylinder l will conan extension 3 in which 1s a device operated tract and close the contact between the head by the heat of the lamp for giving a signal 5 and the platinum point 7, thereby closing in case the lamp should become extinguished the circuit above referred to, whereupon the 40 or the light thereof become very low. This ViCe 17 gives a signal, either audibly or device consists of a cylinder l, of zinc or visibly. It the device 17 is a lamp, it is of other metal, a brass cap 5 adapted to be course placed where the driver or chaufi'eur screwed on one end therh' f, an 1 r d 6 will readily perceive it, the circuit wires beprovided with a platinum point 7 and cow ing led from the lamp to a point within the 45 ered by an asbestos sheathing 8, located incart lage. If the device 17 1s a bell, i m y side the hollow zinc cylinders. The cylinbe placed either outside or inside the carder 4 and cap 5 may, however, be made in riage. one piece of any desired kind of metal. In case the vehicle is not in use, the hand 9 represents a hard rubber nut screwwheel 20 is turned so as to disengage the so threaded on the inside and outside and seplatinum point from th'ehead 5, or, it docured at one end to the zinc cylinder l and sired, the circuit from the battery to the sighaving at the, other end agbrass nut 10, naling device may have an ordinary switch, through which the rod passes such as 22, whereby the circuit may be 11 represents mica washersseparating the broken at any time. The latter method is the combination of thermostatic means, in-

cluding a hollow zinc cylinder, an asbestos tube therein, a metallic head closing one end of said cylinder and engaging therewith, a metallic head for the other end of said cylinder but insulated therefrom, an iron rod adjustably secured in said second named head and passing through said asbestos tube, and an electric circuit, the terminals of which engage sald cylinder and said seciwith a platinum point 0nd named head, respectively, substantially as described. f

2. In a device of the character described, the combination of a hollow zinc cylinder, an asbestos tube therein, a brass head closing one end of said cylinder and connected therewith, a metallic head for the other end of said cylinder, insulating packing between said insulated head and said cylinder, means for securin said'insulated head and said cylinder togetdier, an iron;rod provided adjustably secured in said second named head and passing through said asbestos tube, and an electric circuit, the terminals of which are connected to said cylinder and said second named head, re spectively, substantially as described.

in presence of two witnesses.

FRANCIS J. POINAN. Witnesses:

GEORGE F. SLocUM, (Inns. F.- hirer-Kn.

t 40 In testimony whereof, I atfix my signature 

